Lessons through maps and map making
This portfolio is a collection of the skills developed in VIS 2128 taught by Professor Carole Voulgaris.
Map 1: On accessibility in Hong Kong
As a context for the subsequent maps regarding accessibility in Hong Kong, this map gives one an idea of the public housing, schools and population density landscape in the city and how its accounts for the observations in later maps. This map also serves to demonstrate the following skills: * Displaying multiple vector layers on the same map * Calculating and displaying relationships among point and polygon layers based on distance
Maps 2 & 3: Access to transit stops
These map demonstrate: * Calculating and displaying accessibility, based on travel time
Map 4: Pedestrian access to transit tops (Raster layer)
This map demonstrates: * Displaying raster data on a map * Calculating and displaying accessibility, based on travel time
On ridership in Cambridge
Map 6: Ridership at different time periods
This was the first assignment that introduced map making in R. The skills demonstrated are * Aggregating point data to a layer of polygons
Unique to our group, we needed to geo-reference the data set for ridership in R by joining the subway line shapefile to the ridership csv file.
On access to hospitals for persons with a disability in Suffolk County, MA
On Reykjavik, 1902 and today
Map 8: Service infrastructure in Reykjavik today with reference to the city in 1902
This map shows the service infrastructure in Reykjavík today as the top layer. The historical 1902 map is the second layer at 50% transparency. It overlays the contemporary map. In this order, the service infrastructure which has sprawled out of old Reykjavík, is denoted by a circle. The various types are differentiated by the color of the circle’s fill. We observe “playgrounds” are the largest group and is distributed across old and new Reykjavík, shedding light onto the possibly playful daily life of Icelandic children and their society’s priority for them.
This map demonstrates:
- Geo-referencing a raster image